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authorArne Schwabe <arne@rfc2549.org>2012-04-16 19:21:14 +0200
committerArne Schwabe <arne@rfc2549.org>2012-04-16 19:21:14 +0200
commit3e4d8f433239c40311037616b1b8833a06651ae0 (patch)
tree98ab7fce0d011d34677b0beb762d389cb5c39199 /lzo/tests/chksum.c
Initial import
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+/* chksum.c -- compute a checksum
+
+ This file is part of the LZO real-time data compression library.
+
+ Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
+ All Rights Reserved.
+
+ The LZO library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of
+ the License, or (at your option) any later version.
+
+ The LZO library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with the LZO library; see the file COPYING.
+ If not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ Markus F.X.J. Oberhumer
+ <markus@oberhumer.com>
+ http://www.oberhumer.com/opensource/lzo/
+ */
+
+
+#include "lzo/lzoconf.h"
+
+/* utility layer */
+#define WANT_LZO_MALLOC 1
+#include "examples/portab.h"
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+int main(int argc, char *argv[])
+{
+ lzo_bytep block;
+ lzo_uint block_len;
+ lzo_uint32 adler, crc;
+
+ if (argc < 0 && argv == NULL) /* avoid warning about unused args */
+ return 0;
+
+ if (lzo_init() != LZO_E_OK)
+ {
+ printf("lzo_init() failed !!!\n");
+ return 4;
+ }
+
+/* prepare the block */
+ block_len = 128 * 1024L;
+ block = (lzo_bytep) lzo_malloc(block_len);
+ if (block == NULL)
+ {
+ printf("out of memory\n");
+ return 3;
+ }
+ lzo_memset(block, 0, block_len);
+
+/* adler32 checksum */
+ adler = lzo_adler32(0, NULL, 0);
+ adler = lzo_adler32(adler, block, block_len);
+ if (adler != 0x001e0001UL)
+ {
+ printf("adler32 checksum error !!! (0x%08lx)\n", (long) adler);
+ return 2;
+ }
+
+/* crc32 checksum */
+ crc = lzo_crc32(0, NULL, 0);
+ crc = lzo_crc32(crc, block, block_len);
+ if (crc != 0x7ee8cdcdUL)
+ {
+ printf("crc32 checksum error !!! (0x%08lx)\n", (long) crc);
+ return 1;
+ }
+
+ lzo_free(block);
+ printf("Checksum test passed.\n");
+ return 0;
+}
+
+
+/*
+vi:ts=4:et
+*/
+